// langton_ant.cpp : Defines the entry point for the application.
//

#include "stdafx.h"
#include "langton_ant.h"

#include "Thinker.h"
#include "Displayer.h"
#include "ExtendThinker.h"

#define MAX_LOADSTRING 100

// Global Variables:
HINSTANCE hInst;								// current instance
TCHAR szTitle[MAX_LOADSTRING];					// The title bar text
TCHAR szWindowClass[MAX_LOADSTRING];			// the main window class name

DWORD WINAPI LoopCalc(LPVOID pParam)
{
	//while(TRUE)
	{
		HWND hWnd = (HWND)pParam;
				
		SendMessage(hWnd,WM_PAINT,0,0);
		Sleep(1);
	}

	return 0;
}


// Forward declarations of functions included in this code module:
ATOM				MyRegisterClass(HINSTANCE hInstance);
BOOL				InitInstance(HINSTANCE, int);
LRESULT CALLBACK	WndProc(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK	About(HWND, UINT, WPARAM, LPARAM);

int APIENTRY _tWinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPTSTR    lpCmdLine,
                     int       nCmdShow)
{
	UNREFERENCED_PARAMETER(hPrevInstance);
	UNREFERENCED_PARAMETER(lpCmdLine);

 	// TODO: Place code here.
	MSG msg;
	HACCEL hAccelTable;

	// Initialize global strings
	LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
	LoadString(hInstance, IDC_LANGTON_ANT, szWindowClass, MAX_LOADSTRING);
	MyRegisterClass(hInstance);

	// Perform application initialization:
	if (!InitInstance (hInstance, nCmdShow))
	{
		return FALSE;
	}

	hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_LANGTON_ANT));

	// Main message loop:
	while (GetMessage(&msg, NULL, 0, 0))
	{
		if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
		{
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
	}

	return (int) msg.wParam;
}

//
//  FUNCTION: MyRegisterClass()
//
//  PURPOSE: Registers the window class.
//
//  COMMENTS:
//
//    This function and its usage are only necessary if you want this code
//    to be compatible with Win32 systems prior to the 'RegisterClassEx'
//    function that was added to Windows 95. It is important to call this function
//    so that the application will get 'well formed' small icons associated
//    with it.
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
	WNDCLASSEX wcex;

	wcex.cbSize = sizeof(WNDCLASSEX);

	wcex.style			= CS_HREDRAW | CS_VREDRAW;
	wcex.lpfnWndProc	= WndProc;
	wcex.cbClsExtra		= 0;
	wcex.cbWndExtra		= 0;
	wcex.hInstance		= hInstance;
	wcex.hIcon			= LoadIcon(hInstance, MAKEINTRESOURCE(IDI_LANGTON_ANT));
	wcex.hCursor		= LoadCursor(NULL, IDC_ARROW);
	wcex.hbrBackground	= (HBRUSH)(COLOR_WINDOW+1);
	wcex.lpszMenuName	= MAKEINTRESOURCE(IDC_LANGTON_ANT);
	wcex.lpszClassName	= szWindowClass;
	wcex.hIconSm		= LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));

	return RegisterClassEx(&wcex);
}

//
//   FUNCTION: InitInstance(HINSTANCE, int)
//
//   PURPOSE: Saves instance handle and creates main window
//
//   COMMENTS:
//
//        In this function, we save the instance handle in a global variable and
//        create and display the main program window.
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
	// Land borrowed for testing
	
	char szCurrentDir[1024] = {0,};
	DWORD dwLen = GetCurrentDirectoryA(1024, szCurrentDir);
	szCurrentDir[dwLen] = '\\';
	strncpy(szCurrentDir + dwLen + 1, "backup.bin", strlen("backup.bin"));
	Daniel::ExtendThinker::GetInstance()->initialize(szCurrentDir);



	Daniel::ExtendThinker::GetInstance()->finalize();

   HWND hWnd;

   hInst = hInstance; // Store instance handle in our global variable

   hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
      100,0,800,800, NULL, NULL, hInstance, NULL);

   //Daniel::Thinker::GetInstance()->Think(50);   

   if (!hWnd)
   {
      return FALSE;
   }

   CreateThread(NULL,0,LoopCalc,hWnd,0,0);


   ShowWindow(hWnd, nCmdShow);
   UpdateWindow(hWnd);

   return TRUE;
}

//
//  FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM)
//
//  PURPOSE:  Processes messages for the main window.
//
//  WM_COMMAND	- process the application menu
//  WM_PAINT	- Paint the main window
//  WM_DESTROY	- post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	static char PaintOnce = FALSE;
	int wmId, wmEvent;
	PAINTSTRUCT ps;
	HDC hdc;
	RECT RefreshRect = {0};
	HDC memDc = NULL;
	HBITMAP hBmp;

	switch (message)
	{
	case WM_COMMAND:
		wmId    = LOWORD(wParam);
		wmEvent = HIWORD(wParam);
		// Parse the menu selections:
		switch (wmId)
		{
		case IDM_ABOUT:
			DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
			break;
		case IDM_EXIT:
			DestroyWindow(hWnd);
			break;
		default:
			return DefWindowProc(hWnd, message, wParam, lParam);
		}
		break;
	case WM_PAINT:


		hdc = BeginPaint(hWnd, &ps);

		memDc = CreateCompatibleDC(hdc);
		SetBkMode(memDc, TRANSPARENT);

		hBmp = CreateCompatibleBitmap(memDc, 800, 800);  
		SelectObject(memDc, hBmp);  

		SelectObject(memDc, GetStockObject(DC_BRUSH)); 
		// TODO: Add any drawing code here...
		
		//Rectangle(hdc,400,390,410,400);

#define GRID_SIZE 20

		Rectangle(memDc, 0, 0, 800, 800);

		for (int i=0;i<80;i++)
		{
			POINT pt;

			MoveToEx(memDc, 0, GRID_SIZE*i, &pt);
			LineTo(memDc, 800, GRID_SIZE*i);

			MoveToEx(memDc, GRID_SIZE*i, 0, &pt);
			LineTo(memDc, GRID_SIZE*i, 800);
		}

		Daniel::Displayer::GetInstance()->SetHDC(memDc);
		Daniel::Displayer::GetInstance()->SetGridSize(GRID_SIZE);
		//Daniel::Displayer::GetInstance()->SetCenter(0, 0);

		//Daniel::Thinker::GetInstance()->SaveAsBitmap();

		SetDCBrushColor(memDc, RGB(0,0,0));	
		
		Daniel::Displayer::GetInstance()->GetRefreshRect(&RefreshRect);		
		
		Daniel::Thinker::GetInstance()->ThinkOnce();

		for(std::vector<Daniel::POINT>::iterator it = Daniel::Thinker::GetInstance()->Begin();
			it != Daniel::Thinker::GetInstance()->End();
			it++)
		{
			Daniel::Displayer::GetInstance()->DrawGrid(it->x, it->y);
		}
		BitBlt(hdc, 0, 0, 800, 800, memDc, 0, 0, SRCCOPY);

		SelectObject(hdc, GetStockObject(DC_BRUSH)); 
		Daniel::Displayer::GetInstance()->SetHDC(hdc);

		SetDCBrushColor(hdc, RGB(0,200,0));		
		Daniel::Displayer::GetInstance()->DrawCenterGrid();
		
		SetDCBrushColor(hdc, RGB(200,0,0));
		Daniel::Displayer::GetInstance()->DrawNextGrid();

		
		DeleteDC(memDc);
		InvalidateRect(hWnd,NULL,FALSE);
		EndPaint(hWnd, &ps);		

		Sleep(100);
		//SendMessage(hWnd,WM_PAINT,0,0);
		break;
	case WM_DESTROY:
		PostQuitMessage(0);
		break;
	default:
		return DefWindowProc(hWnd, message, wParam, lParam);
	}
	return 0;
}

// Message handler for about box.
INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
	UNREFERENCED_PARAMETER(lParam);
	switch (message)
	{
	case WM_INITDIALOG:
		return (INT_PTR)TRUE;

	case WM_COMMAND:
		if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
		{
			EndDialog(hDlg, LOWORD(wParam));
			return (INT_PTR)TRUE;
		}
		break;
	}
	return (INT_PTR)FALSE;
}
